Your Mom is growing zinnias in her garden. Zinnias are grown all across the southern part of the US and come in many sizes and
shapes. You notice in your mom's garden there are lots of differences in the zinnias there. Why are these zinnias so different?

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?